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I am wondering if decision trees ever get used in game code. A quick search isn't exactly turning up an answer, though I did find a piece on decision trees on AI Horizon: http://www.aihorizon.com/essays/generalai/decision_trees.htm And there is also this: http://en.wikipedia.org/wiki/Game_tree But I am thinking more like a game like SimCity, for example. And I am not really finding an answer.

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They do [1], but not as often as you expect. Most games don't actually use AI, as the goal is to make in game characters appear intelligent, rather than actually being so.

[1] http://www.sauropodstudio.com/dev-diary-number-fifteen-ai-ba...

Thx!

What would SimCity be deciding?

Technically, it wouldn't be SimCity. I am just wondering if a decision tree could be incorporated into a simulation style game like SimCity (or some other Sim) and, if so, how would that look, code-wise? (for example)

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